There are several ways to view statistics of your database or channel values. Here are three that I often use:
1. Channel Stats. Click twice on the channel name to highlight the current line (or drillhole); click three times to include all the selected lines in the database. Then right click to access "Statistics".
The same information can be accessed via Database Tools > Report > Mark Statistics. This menu has Line/Channel Report and Total Distance too!
2. Advanced Statistics are available in some extensions. Look in Database Tools > Geostatistics Toolkit > Summary Statistics.
In the Geochemistry menu, this is found under GeochemAnalysis > Summary Statistics.
3. Another option in GeochemAnalysis > Save Statistics will save stats for all channels directly to a CSV file.